<template>
  <div>
    <el-card class="box-card" style="margin: 10px 0">
      <div slot="header" class="clearfix">
        <!-- v-model="activeName" @tab-click="handleClick" -->
        <!-- 头部左侧内容 -->
        <el-tabs class="tab" v-model="activeName">
          <el-tab-pane label="销售额" name="sale"></el-tab-pane>
          <el-tab-pane label="访问量" name="visite"></el-tab-pane>
        </el-tabs>
        <!-- 头部右侧内容 -->
        <div class="right" style="cursor: pointer">
          <span @click="setDay">今日</span>
          <span @click="setWeek">本周</span>
          <span @click="setMonth">本月</span>
          <span @click="setYear">本年</span>
          <!-- 
            v-model="value1"
           -->
          <el-date-picker
            v-model="date"
            class="date"
            type="daterange"
            range-separator="-"
            start-placeholder="开始日期"
            end-placeholder="结束日期"
            size="mini"
            value-format="yyyy-MM-dd"
          >
          </el-date-picker>
        </div>
      </div>
      <div>
        <el-row :gutter="10">
          <el-col :span="18">
            <!-- 容器 -->
            <div class="charts" ref="charts"></div>
          </el-col>
          <el-col :span="6" class="right">
            <h3>门店{{ title }}排名</h3>
            <ul>
              <li>
                <span class="rindex">1</span>
                <span>肯德基</span>
                <span class="rvalue">923,456</span>
              </li>
              <li>
                <span class="rindex">2</span>
                <span>麦当劳</span>
                <span class="rvalue">865,454</span>
              </li>
              <li>
                <span class="rindex">3</span>
                <span>华莱士</span>
                <span class="rvalue">722,126</span>
              </li>
              <li>
                <span style="padding: 0 5px">4</span>
                <span>海底捞</span>
                <span class="rvalue">627,678</span>
              </li>
              <li>
                <span style="padding: 0 5px">5</span>
                <span>西贝莜面村</span>
                <span class="rvalue">556,786</span>
              </li>
              <li>
                <span style="padding: 0 5px">6</span>
                <span>汉堡王</span>
                <span class="rvalue">423,656</span>
              </li>
              <li>
                <span style="padding: 0 5px">7</span>
                <span>真功夫</span>
                <span class="rvalue">323,984</span>
              </li>
            </ul>
          </el-col>
        </el-row>
      </div>
    </el-card>
  </div>
</template>

<script>
import * as echarts from "echarts";
import dayjs from "dayjs";

export default {
  data() {
    return {
      activeName: "",
      mycharts: null,
      //收集日历
      date: [],
    };
  },
  mounted() {
    this.activeName = "sale";
    this.mycharts = echarts.init(this.$refs.charts);
    this.mycharts.setOption({
      title: {
        text: "销售额趋势",
      },
      tooltip: {
        trigger: "axis",
        axisPointer: {
          type: "shadow",
        },
      },
      grid: {
        left: "3%",
        right: "4%",
        bottom: "3%",
        containLabel: true,
      },
      xAxis: [
        {
          type: "category",
          data: [],
          axisTick: {
            alignWithLabel: true,
          },
        },
      ],
      yAxis: [
        {
          type: "value",
        },
      ],
      series: [
        {
          color: "skyblue",
          name: "Direct",
          type: "bar",
          barWidth: "60%",
          data: [],
        },
      ],
    });
  },
  computed: {
    //计算属性---标题
    title() {
      return this.activeName == "sale" ? "销售额" : "访问量";
    },
  },
  watch: {
    title() {
      //重新修改图表的配置数据
      this.mycharts.setOption({
        title: {
          text: this.title + "趋势",
        },
        xAxis: {
          data:
            this.title == "销售额"
              ? [
                  "一月",
                  "二月",
                  "三月",
                  "四月",
                  "五月",
                  "六月",
                  "七月",
                  "八月",
                  "九月",
                  "十月",
                  "十一月",
                  "十二月",
                ]
              : [
                  "1月",
                  "2月",
                  "3月",
                  "4月",
                  "5月",
                  "6月",
                  "7月",
                  "8月",
                  "9月",
                  "10月",
                  "1月",
                  "12月",
                ],
        },
        series: [
          {
            data:
              this.title == "销售额"
                ? [59, 52, 200, 334, 390, 330, 220, 110, 98, 100, 234, 120]
                : [159, 32, 100, 134, 290, 330, 210, 120, 68, 90, 134, 128],
          },
        ],
      });
    },
  },
  methods: {
    //当天
    setDay() {
      const day = dayjs().format("YYYY-MM-DD");
      this.date = [day, day];
    },
    //本周
    setWeek() {
      const start = dayjs().day(1).format("YYYY-MM-DD");
      const end = dayjs().day(7).format("YYYY-MM-DD");
      this.date = [start, end];
    },
    //本月
    setMonth() {
      const start = dayjs().startOf("month").format("YYYY-MM-DD");
      const end = dayjs().endOf("month").format("YYYY-MM-DD");
      this.date = [start, end];
    },
    //本年
    setYear() {
      const start = dayjs().startOf("year").format("YYYY-MM-DD");
      const end = dayjs().endOf("year").format("YYYY-MM-DD");
      this.date = [start, end];
    },
  },
};
</script>

<style scoped>
.clearfix {
  position: relative;
  display: flex;
  justify-content: space-between;
}
.tab {
  width: 100%;
}
.right {
  position: absolute;
  right: 0;
}
.date {
  width: 250px;
  margin: 0 20px;
}
.right span {
  margin: 0 10px;
}
.charts {
  width: 100%;
  height: 300px;
}
ul {
  list-style: none;
  width: 100%;
  height: 300px;
  padding: 0px;
}
ul li {
  height: 8%;
  margin: 10px 0px;
}
.rindex {
  float: left;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: black;
  color: white;
  text-align: center;
}
.rvalue {
  float: right;
}
</style>